Continuity mistake: The American soldiers lift out the bodies of the two German tankers and immediately start off in the German tank. They did not have time to hide/dispose of the bodies, yet when other German units show up shortly after, the bodies are missing.
Other mistake: When the German soldiers are on the radio alerting other German units of Americans in a captured German tank, they are using the English word "tank"- the Germans should be using the word "panzer", instead.
Actor Vic Morrow used a non-firing wooden replica of a Tompson submachine gun due to its lighter weight, thus being easier to carry. He used a heavier blank-firing model when it was required to be fired.